1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
#include "sys-defines.h"
#include "extern.h"
#define NUM_SVG_COLORNAMES 16
const plColorNameInfo _svg_colornames[NUM_SVG_COLORNAMES + 1] =
{
{"aqua", 0x00, 0xff, 0xff},
{"black", 0x00, 0x00, 0x00},
{"blue", 0x00, 0x00, 0xff},
{"fuchsia", 0xff, 0x00, 0xff},
{"gray", 0x80, 0x80, 0x80},
{"green", 0x00, 0x80, 0x00},
{"lime", 0x00, 0xff, 0x00},
{"maroon", 0x80, 0x00, 0x00},
{"navy", 0x00, 0x00, 0x80},
{"olive", 0x80, 0x80, 0x00},
{"purple", 0x80, 0x00, 0x80},
{"red", 0xff, 0x00, 0x00},
{"silver", 0xc0, 0xc0, 0xc0},
{"teal", 0x00, 0x80, 0x80},
{"white", 0xff, 0xff, 0xff},
{"yellow", 0xff, 0xff, 0x00},
{NULL, 0, 0, 0}
};
/* convert a 48-bit libplot color to a string resembling "#ffffff" for SVG;
may also return a string in our database of SVG's builtin colors */
const char *
#ifdef _HAVE_PROTOS
_libplot_color_to_svg_color (plColor color_48, char charbuf[8])
#else
_libplot_color_to_svg_color (color_48, charbuf)
plColor color_48;
char charbuf[8]; /* passed storage */
#endif
{
plColor color_24;
int i;
bool found = false;
const char *svg_color;
color_24.red = ((unsigned int)color_48.red) >> 8;
color_24.green = ((unsigned int)color_48.green) >> 8;
color_24.blue = ((unsigned int)color_48.blue) >> 8;
for (i = 0; i < NUM_SVG_COLORNAMES; i++)
{
if (color_24.red == _svg_colornames[i].red
&& color_24.green == _svg_colornames[i].green
&& color_24.blue == _svg_colornames[i].blue)
{
found = true;
break;
}
}
if (found)
svg_color = _svg_colornames[i].name;
else
{
sprintf (charbuf, "#%02x%02x%02x",
color_24.red, color_24.green, color_24.blue);
svg_color = charbuf;
}
return svg_color;
}
|
